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Delirium, depression, and anxiety.

Sahana Misra¹, Linda Ganzini

¹Portland VAMC, Mental Health Division (P3MHDC), 3710 SW US Veterans Hospital Road, Portland, OR 97239, USA.

Critical Care Clinics

|November 7, 2003

Summary

Critically ill patients frequently experience psychiatric symptoms, with delirium being the most common intensive care unit (ICU) disorder. Anxiety and depression also occur, often linked to delirium.

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Area of Science:

Critical care medicine
Psychiatry
Intensive care unit (ICU) patient care

Background:

Critically ill patients often exhibit diverse psychiatric symptoms requiring clinical attention.
Delirium is the most prevalent psychiatric disorder observed in the intensive care unit (ICU) setting.
Depressed mood and anxiety are common, sometimes as distinct conditions, but frequently secondary to delirium.

Purpose of the Study:

To summarize the psychiatric conditions commonly encountered in critically ill patients.
To highlight the prevalence and nature of delirium, depression, and anxiety in the ICU.
To underscore the need for psychiatric assessment and management in intensive care.

Main Methods:

Review of psychiatric symptom presentation in critically ill populations.
Analysis of the incidence of delirium, depression, and anxiety in intensive care units.
Discussion of the relationship between these psychiatric conditions and critical illness.

Main Results:

Delirium is the most frequent psychiatric disorder in intensive care unit patients.
Depressed mood and anxiety are commonly observed, often in conjunction with delirium.
The assessment and management of these psychiatric symptoms are crucial components of critical care.

Conclusions:

Psychiatric symptoms are a significant concern for critically ill patients.
Effective management of delirium, depression, and anxiety is essential for optimal patient outcomes in the ICU.
Specialized psychiatric care may be necessary for patients with pre-existing severe mental illnesses, though this is outside the scope of this summary.

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